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Reactive arthritis

Reiter syndrome; Post-infectious arthritis

Reactive arthritis is a type of arthritis that follows an infection. It may also cause inflammation of the eyes, skin and urinary and genital systems.

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Reactive arthritis - view of the feet

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Causes

The exact cause of reactive arthritis is unknown. However, it most often follows an infection, but the joint itself is not infected. Reactive arthritis occurs most often in men younger than age 4, although it does sometimes affect women. It may follow an infection in the urethra after unprotected sex. The most common bacteria that cause such infections is called Chlamydia trachomatis. Reactive arthritis can also follow a gastrointestinal infection (such as food poisoning). In up to one half of people thought to have reactive arthritis, there may be no infection. It is possible that such cases are a form of spondyloarthritis.

Certain genes may make you more likely to get this condition.

The disorder is rare in young children, but it may occur in teenagers. Reactive arthritis may occur in children ages 6 to 14 after Clostridium difficile gastrointestinal infections.

Symptoms

Urinary symptoms will appear within days or weeks of an infection. These symptoms may include:

A low fever along with eye discharge, burning, or redness (conjunctivitis or "pink eye") can develop over the next several weeks.

Infections in the intestine may cause diarrhea and abdominal pain. The diarrhea may be watery or bloody.

Joint pain and stiffness also begin during this time period. The arthritis may be mild or severe. Arthritis symptoms may include:

Symptoms may include skin sores on the palms and soles that look like psoriasis. There may also be small, painless ulcers in the mouth, tongue, and penis.

Exams and Tests

Your health care provider will diagnose the condition based on your symptoms. A physical exam may show signs of conjunctivitis or skin sores. All symptoms may not appear at the same time, so there may be a delay in getting a diagnosis.

You may have the following tests:

Treatment

The goal of treatment is to relieve symptoms and treat the infection that is causing this condition.

Eye problems and skin sores do not need to be treated most of the time. They will go away on their own. If eye problems persist, you should be evaluated by a specialist in eye disease.

Your provider will prescribe antibiotics if you have an infection. Nonsteroidal anti-inflammatory drugs (NSAIDs) and pain relievers may help with joint pain. If a joint is very swollen for a long period of time, you may have corticosteroid medicine injected into the joint.

If arthritis continues in spite of NSAIDs, sulfasalazine or methotrexate may be helpful. Finally, people who do not respond to these medicines may need anti-TNF biologic agents such as etanercept (Enbrel) or adalimumab (Humira) to suppress the immune system.

Physical therapy can help ease the pain. It can also help you move better and maintain muscle strength.

Outlook (Prognosis)

Reactive arthritis may go away in a few weeks, but it can last for a few months and require medicines during that time. Symptoms may return over a period of years in up to one half of the people who have this condition.

Rarely, the condition can lead to abnormal heart rhythm or problems with the aortic heart valve.

When to Contact a Medical Professional

See your provider if you develop symptoms of this condition.

Prevention

Avoid infections that can bring on reactive arthritis by practicing safe sex and avoiding things that can cause food poisoning.

Related Information

Arthritis
Urethritis
Conjunctivitis or pink eye
Chlamydia
Aortic regurgitation
Arrhythmias
Uveitis

References

Augenbraun MH, McCormack WM. Urethritis. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases, Updated Edition. 8th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 109.

Carter JD, Hudson AP. Undifferentiated spondyloarthritis. In: Firestein GS, Budd RC, Gabriel SE, McInnes IB, O'Dell JR, eds. Kelley and Firestein's Textbook of Rheumatology. 10th ed. Philadelphia, PA: Elsevier; 2017:chap 76.

Horton DB, Strom BL, Putt ME, Rose CD, Sherry DD, Sammons JS. Epidemiology of clostridium difficile infection-associated reactive arthritis in children: an underdiagnosed, potentially morbid condition. JAMA Pediatr. 2016;170(7):e160217. PMID: 27182697 www.ncbi.nlm.nih.gov/pubmed/27182697.

Link RE, Rosen T. Cutaneous diseases of the external genitalia. In: Wein AJ, Kavoussi LR, Partin AW, Peters CA, eds. Campbell-Walsh Urology. 11th ed. Philadelphia, PA: Elsevier; 2016:chap 16.

Misra R, Gupta L. Epidemiology: time to revisit the concept of reactive arthritis. Nat Rev Rheumatol. 2017;13(6):327-328. PMID: 28490789 www.ncbi.nlm.nih.gov/pubmed/28490789.

Okamoto H. Prevalence of chlamydia-associated reactive arthritis. Scand J Rheumatol. 2017;46(5):415-416. PMID: 28067600 www.ncbi.nlm.nih.gov/pubmed/28067600.

Schmitt SK. Reactive arthritis. Infect Dis Clin North Am. 2017;31(2):265-277. PMID: 28292540 www.ncbi.nlm.nih.gov/pubmed/28292540.

Weiss PF, Colbert RA. Reactive and postinfectious arthritis. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 182.

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Review Date: 4/8/2019  

Reviewed By: Gordon A. Starkebaum, MD, MACR, ABIM Board Certified in Rheumatology, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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